which of this is a difference between DNA and RNA?

Question

1.which of this is a difference between DNA and RNA?

a)DNA is found in the nucleus; RNA is never found is the nucleus.

b)In DNA, adenine pairs with guanier; in RNA, adenine pairs with thymine.

c)DNA consists of five different nucleotides;Rna consists of four different nucleotides.

d)DNA contains thymine; RNA consists of four different nucleotides.

e)RNA is doubles-stranded; DNA is sigle-stranded.

2.which of the follwing is not a component of the endomembrane system?

a)Golgi apparatus
b)lysosome
c)vacuole
d)endoplasmic reticulum
e)ribosome

3.Nucleic acids are polymers of ____monemers.
a)nucleotide
b)hydrocarbon
c)fatty acid
d)DNA
e)monosaccharide

4.The difference between eukaryotic and prokaryotic cells is that eukaryotic cells ____prokaryotic.

a)have DNA, which is lacking in
b)have a nucleoid region, which is lacking in
c)lack the complexity seen in
d)have a nucleus, which is lacking in
e)have a plasma membrane, which is lacking in

Answer 1

1.
a is not true - rna is found in the nucleus sometimes
b is not true - a pairs with t in DNA, a with u in RNA
c is not true - dna has 4 nucleotides
d is true, DNA has t, RNA has 4 nucleotides
e is not true, rna is single stranded, DNA is double stranded

2
e a ribosome is a protein and RNA complex, it is not part of the endomembrane system

3
a nucleotide monomers is correct
d is not correct because DNA is made up of nucleic acids, not the other way around

4
a false
b opposite
c opposite
d true
e false

Answer 2

Deoxyribonucleic acid (DNA) is a nucleic acid that includes the genetic instructions used contained in the shape and functioning of all straightforward residing organisms and some viruses. the significant position of DNA molecules is the lengthy-time period storage of advice. Ribonucleic acid (RNA) is a variety of molecule that incorporates a lengthy chain of nucleotide gadgets. each and every nucleotide incorporates a nitrogenous base, a ribose sugar, and a phosphate. RNA is amazingly such as DNA, yet differs in some significant structural information: contained in the cellular, RNA is many times unmarried-stranded, even as DNA is many times double-stranded; RNA nucleotides comprise ribose even as DNA includes deoxyribose (a variety of ribose that lacks one oxygen atom); and RNA has the bottom uracil fairly than thymine it truly is recent in DNA.

Answer 3

1.http://answers.yahoo.com/question/index;_ylt=Ah9H8usc0PQTgegwEaAzZTAjzKIX;_ylv=3?qid=20070228222450AAxV1MJ

3. http://en.wikipedia.org/wiki/Nucleic_acid

2&4. http://kentsimmons.uwinnipeg.ca/cm1504/Image125.gif

all i did was use google...you should know how to research your own hmwk ;D

Answer 4

a b d b